The 14 stories in this book were especially selected for younger readers from the adult edition first published many years ago. The well known physiologist wrote in warm, personal terms about his observations of animal behavior. Much of what he saw occurred among the laboratory animals at the College of Medicine of the University of Cincinnati. His speculations about the relative intelligence of birds and animals often spin out into reflections of character -- the dispositions of canaries, the way curiosity prods behavior at any level of intelligence, the offers of loyalty and the examples of affection. His musings are meaningful, thoughtfully put and serve to sharpen the appreciation of characteristics shared by men and animals. The stories are done with a gentle, teasing sort of humor and the style is facile -- two factors too seldom encountered in books of a scientific nature for laymen.